MultipleOutputFormat and key class

[Rong-en Fan <gr...@gmail.com>]

Hi,

I'm playing with MultipleOutputFormat in 0.19.2. However, it seems to
me that I can not change key class in MOF. For example, my Map outputs
<Text, Text> but in the end, I want to store <LongWritable, Text>. The
reason that Map outputs Text as key is to encode information for MOF.
In my MOF class I use

public class MyMOF<K,V> extends MOF<K,V>
{
   public LongWritable generateActualKey(Key, Value)
   {
      return LongWritable(...)
   }
}

But it seems somehow this method is not used and mapred complains my
final key is not a class of LongWritable (I did
JobConf.setOutputKeyClass(LongWritable.class)).

Any idea?

Thanks,
Rong-En Fan